CN201941338U - 一种新型粉笔套 - Google Patents

一种新型粉笔套 Download PDF

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Publication number
CN201941338U
CN201941338U CN2010206996117U CN201020699611U CN201941338U CN 201941338 U CN201941338 U CN 201941338U CN 2010206996117 U CN2010206996117 U CN 2010206996117U CN 201020699611 U CN201020699611 U CN 201020699611U CN 201941338 U CN201941338 U CN 201941338U
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chalk
novel
novel chalk
wall
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CN2010206996117U
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吴珊
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Individual
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Abstract

本实用新型公开了一种新型粉笔套,属于教学用具领域,该粉笔套由上套和下套组成,其中所述上套为空腔结构,下套为实心圆柱体,所述上套的下半部分内壁和下套的上半部分外壁上有相契合的螺纹,在上套端部设有粉笔固定装置,本实用新型结构简单,使用方便,避免了教师在教学板书过程中被粉笔中的碳酸钙腐蚀的机会。

Description

一种新型粉笔套
技术领域
本实用新型涉及教学用具领域,特别涉及一种新型粉笔套。
背景技术
目前在大多数院校中依然采用板书教学,在板书时,粉笔中的碳酸钙对教师的手造成腐蚀。
实用新型内容
本实用新型根据现有技术的不足而提供的一种新型粉笔套。
本实用新型的技术方案为:一种新型粉笔套,由上套和下套组成,其中所述上套为空腔结构,下套为实心圆柱体,所述上套的下半部分内壁和下套的上半部分外壁上有相契合的螺纹,在上套端部设有粉笔固定装置。
本实用新型和现有技术相比,具有结构简单,使用方便的优点,在很大程度上避免了教师在教学板书过程中被粉笔中的碳酸钙腐蚀的机会。
附图说明
图1为本实用新型的结构示意图。
具体实施方式
参照说明书附图对本实用新型作以下详细说明:
如图1所示,一种新型粉笔套,由上套1和下套2组成,其中所述上套1为空腔结构,下套2为实心圆柱体,所述上套1的下半部分内壁和下套2的上半部分外壁上有相契合的螺纹3,在上套1端部设有粉笔固定装置4。
使用时,当外漏的粉笔长度较短时,旋转上套1和下套2,随着相契合螺纹3变长,下套2上端将粉笔顶出,外漏的粉笔长度变长。

Claims (1)

1.一种新型粉笔套,其特征在于:所述粉笔套由上套和下套组成,其中所述上套为空腔结构,下套为实心圆柱体,所述上套的下半部分内壁和下套的上半部分外壁上有相契合的螺纹,在上套端部设有粉笔固定装置。
CN2010206996117U 2010-12-31 2010-12-31 一种新型粉笔套 Expired - Fee Related CN201941338U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206996117U CN201941338U (zh) 2010-12-31 2010-12-31 一种新型粉笔套

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206996117U CN201941338U (zh) 2010-12-31 2010-12-31 一种新型粉笔套

Publications (1)

Publication Number Publication Date
CN201941338U true CN201941338U (zh) 2011-08-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206996117U Expired - Fee Related CN201941338U (zh) 2010-12-31 2010-12-31 一种新型粉笔套

Country Status (1)

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CN (1) CN201941338U (zh)

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Granted publication date: 20110824

Termination date: 20111231